255522330 has 64 divisors (see below), whose sum is σ = 778740480. Its totient is φ = 58404672.

The previous prime is 255522329. The next prime is 255522353. The reversal of 255522330 is 33225552.

It is a super-2 number, since 2×255522330² = 130583322257257800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 255522294 and 255522303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65709 + ... + 69488.

It is an arithmetic number, because the mean of its divisors is an integer number (12167820).

Almost surely, 2^255522330 is an apocalyptic number.

255522330 is an abundant number, since it is smaller than the sum of its proper divisors (523218150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255522330 is a wasteful number, since it uses less digits than its factorization.

255522330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135220 (or 135214 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 255522330 is about 15985.0658428422. The cubic root of 255522330 is about 634.5652510174.

Adding to 255522330 its reverse (33225552), we get a palindrome (288747882).

The spelling of 255522330 in words is "two hundred fifty-five million, five hundred twenty-two thousand, three hundred thirty".